DEV Community

JavaScript

Once relegated to the browser as one of the 3 core technologies of the web, JavaScript can now be found almost anywhere you find code. JavaScript developers move fast and push software development forward; they can be as opinionated as the frameworks they use, so let's keep it clean here and make it a place to learn from each other!

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
JWT Tokens Decoded: What's Actually Inside That eyJ… String

JWT Tokens Decoded: What's Actually Inside That eyJ… String

Comments
4 min read
Add Live Exchange Rates to Your App in 5 Minutes

Add Live Exchange Rates to Your App in 5 Minutes

Comments
2 min read
CSV to JSON: How to Convert Tabular Data in Pure JavaScript (No Libraries)

CSV to JSON: How to Convert Tabular Data in Pure JavaScript (No Libraries)

Comments 1
4 min read
Animating React Without Fighting the Render Loop: useRafFn, useRafState, useFps, useDevicePixelRatio, useUpdate

Animating React Without Fighting the Render Loop: useRafFn, useRafState, useFps, useDevicePixelRatio, useUpdate

6
Comments 1
13 min read
I Built AdaptiveKit to Give Any Web App a UI That Learns From the People Using It

I Built AdaptiveKit to Give Any Web App a UI That Learns From the People Using It

Comments
5 min read
Building B2B feedback, NPS, and announcements as a drop-in embed (not another heavy SDK)

Building B2B feedback, NPS, and announcements as a drop-in embed (not another heavy SDK)

Comments
3 min read
Building HOLO.SYS — A Futuristic 3D Holographic Visualization System with React, Three.js & GLSL

Building HOLO.SYS — A Futuristic 3D Holographic Visualization System with React, Three.js & GLSL

5
Comments 1
5 min read
🚫 You Don't Need Python to Build AI Apps (JavaScript Developers Read This)

🚫 You Don't Need Python to Build AI Apps (JavaScript Developers Read This)

Comments
3 min read
EU Digital Product Passports in 2026: A Developer's Implementation Guide

EU Digital Product Passports in 2026: A Developer's Implementation Guide

Comments
2 min read
My First Log: Building a Job Card UI with MERN

My First Log: Building a Job Card UI with MERN

Comments
1 min read
Browser Storage for Firefox Extensions: localStorage vs IndexedDB vs storage.local

Browser Storage for Firefox Extensions: localStorage vs IndexedDB vs storage.local

Comments
3 min read
Structured Prompts Cut Token Waste 35-40%. Here's Where It Actually Matters.

Structured Prompts Cut Token Waste 35-40%. Here's Where It Actually Matters.

Comments
4 min read
Building a Search Bar for Your Firefox New Tab Extension

Building a Search Bar for Your Firefox New Tab Extension

Comments
3 min read
x402微支付实战:3分钟搭建你的第一个收费API

x402微支付实战:3分钟搭建你的第一个收费API

Comments
1 min read
5 URL Encoding Bugs That Silently Break Your App

5 URL Encoding Bugs That Silently Break Your App

Comments
3 min read
👋 Sign in for the ability to sort posts by relevant, latest, or top.